Ultra Clean Holdings, Inc.: revenue up 48.8%, but profit barely turns into cash

On 27 October, Ultra Clean Holdings, Inc. reported results for the third quarter of 2026. Revenue reached $759.0 million, up 48.8% year on year and 18% above the second quarter; operating profit was $53.7 million and net profit $39.1 million, a 5.2% net margin versus -2.1% a year earlier. The company guided fourth-quarter revenue to $800–860 million, but operating cash flow for the nine months remained negative at -$116.7 million. In our view the share looks rather attractive: the portal's model implies +31% upside to fair value, although leverage of 2.47x EBITDA and weak cash generation temper the assessment.

Key takeaways

— Revenue of $759.0 million grew 48.8% year on year, and products, not services, delivered almost all of the increase

— Gross margin rose to 16.9% from 16.1% in the prior quarter, but operating profit was also helped by one-off adjustments

— Net profit of $39.1 million includes one-off items; without them the result is more modest

— Operating cash flow for the nine months was negative $116.7 million because of inventory build

— Debt rose to $635.1 million after a convertible notes offering, and the debt-to-EBITDA ratio stands at 2.47

— Fourth-quarter guidance of $800–860 million implies further acceleration in growth

— Valuation at 19.1x EV/EBITDA and 88.1x P/E looks high, but the portal's model implies +31% upside

Attractiveness

Key figures, USD bn

Revenue of $759.0 million grew 48.8% year on year, and products, not services, delivered almost all of the increase

Third-quarter 2026 revenue was $759.0 million versus $510.0 million a year earlier. Growth of 48.8% accelerated markedly from 24.3% in the second quarter. Products generated $681.9 million and services $77.1 million; a year earlier products contributed $445.0 million and services $65.0 million. Products thus delivered almost all of the increase, while services added only $12.1 million.

The sequential comparison is also strong: second-quarter revenue was $644.9 million, so the quarter-on-quarter increase was 18%. The company attributes this to accelerating customer demand and expanded production. Fourth-quarter guidance of $800–860 million implies that growth will continue and exceed the third-quarter level.

Gross margin rose to 16.9% from 16.1% in the prior quarter, but operating profit was also helped by one-off adjustments

Gross margin in the third quarter was 16.9% versus 16.1% in the second quarter and 16.1% a year earlier. Gross profit reached $128.4 million. Operating margin rose to 7.1% from 4.6% in the prior quarter. Adjusted operating margin, excluding amortisation of intangibles, stock-based compensation and one-off items, was 9.0%.

One-off items include $6.8 million of intangible amortisation, $6.9 million of stock-based compensation, $0.6 million of restructuring and $0.6 million of legal costs. Without them operating profit would have been $68.6 million instead of $53.7 million. This means part of the margin improvement is one-off in nature, although underlying revenue growth also contributed to higher profitability.

Net profit of $39.1 million includes one-off items; without them the result is more modest

Net profit attributable to Ultra Clean Holdings, Inc. was $39.1 million, or $0.85 per diluted share, versus a loss of $10.9 million a year earlier. The net margin reached 5.2% versus -2.1% a year earlier. Adjusted net profit was $53.2 million, or $1.15 per share.

The gap between GAAP and adjusted profit includes $6.8 million of amortisation, $6.9 million of stock-based compensation, $2.6 million of unrealised foreign-exchange losses and tax effects. One-off items thus raised adjusted profit relative to GAAP, but some of them – stock-based compensation, for instance – recur every quarter. The actual cash result is lower, as the weak operating cash flow confirms.

Operating cash flow for the nine months was negative $116.7 million because of inventory build

For the nine months of 2026, operating cash flow was negative at -$116.7 million versus positive $57.5 million a year earlier. The main reason is a $332.4 million increase in inventories and a $63.6 million increase in receivables, partly offset by a $131.1 million increase in payables. The company is building working capital to meet higher demand.

Capital expenditure for the nine months was $45.3 million. Free cash flow therefore remains negative. This is a key risk: revenue and profit growth is not yet converting into cash, and if growth slows the company will have to reduce inventories, which could hit margins.

Debt rose to $635.1 million after a convertible notes offering, and the debt-to-EBITDA ratio stands at 2.47

Long-term debt at the end of the third quarter was $635.1 million versus $467.0 million at the end of 2025. The increase reflects a $600.0 million convertible notes offering, partly offset by $481.5 million of bank loan repayments. Cash declined to $270.9 million from $311.8 million.

The ratio of net debt to trailing-twelve-month EBITDA is 2.47. This is a moderate level, but it has risen from a year earlier when debt was lower. Quarterly interest expense was $1.5 million versus $9.9 million a year earlier, reflecting lower cost of debt service after refinancing.

Fourth-quarter guidance of $800–860 million implies further acceleration in growth

The company expects fourth-quarter 2026 revenue in the range of $800–860 million. This is above the third quarter ($759.0 million) and implies continued growth. Diluted earnings per share guidance is $1.02–1.26 on a GAAP basis and $1.11–1.35 on an adjusted basis.

If the company reaches the top end of guidance, annual revenue could exceed $3 billion. However, the guidance does not account for a possible slowdown in demand or supply-chain issues. In addition, working-capital growth may require additional financing.

Valuation at 19.1x EV/EBITDA and 88.1x P/E looks high, but the portal's model implies +31% upside

The trailing-twelve-month EV/EBITDA ratio is 19.1 and P/E is 88.1. Return on equity is 7.6%. For a company with negative free cash flow, these multiples look high. However, our valuation model, based on EBITDA growth and a target multiple, implies +31% upside to fair value.

Since the report was published, the share has risen 10.2% and trades at $46.71. Market capitalisation is $2.34 billion. If the company can improve conversion of profit into cash flow, the multiples could decline without a fall in the share price. Otherwise, the valuation will remain under pressure.

Valuation on the latest reported figures

Bottom line

The strong side of the report is revenue acceleration to 48.8% and margin expansion, along with confident fourth-quarter guidance. The weak side is negative cash flow and rising debt. One-off items supported profit but not cash. The question for a holder now is whether the company can convert growth into cash without increasing debt. In our view the share is rather attractive: the portal's model implies +31%, but the risks warrant attention.